After delivering EV packs with 12-year lifespan for NIO, CATL has now made an electric vehicle battery with a 15-year longevity. The pack is rated for zero capacity loss after 1,000 charge cycles.https://www.notebookcheck.net/Electric-vehicles-can-claim-15-year-warranty-as-CATL-outs-million-mile-battery-with-zero-degradation-in-1000-cycles.819405.0.html
Microvast already has a battery (52.5ah) that lasts the life of the vehicle and they currently are going into Iveco and JBM buses.